LINEAR VIBRATION MOTOR

WIPO Patent Application WO/2021/134249

A1

A linear vibration motor (100), comprising a housing (1) having an accommodating space (10), a guide sleeve (2), a vibration unit (3), a coil unit (4), and a magnetic spring unit (5). The guide sleeve (2) is accommodated in the accommodating space (10), is supported and fixed on two opposite sides of the housing (1), and is provided with a guide channel (20) penetrating through the guide sleeve (2). The vibration unit (3) is accommodated in the guide channel (20) and is in sliding connection to the guide sleeve (2), and the vibration unit (3) comprises a magnetic steel unit (31). The coil unit (4) is accommodated in the accommodating space (10), sleeves the outer side of the guide sleeve (2) and is used for driving the vibration unit (3) to vibrate in the axial direction of the guide channel (20). The magnetic spring unit (5) is fixed to the guide sleeve (2) and spaced from the vibration unit (3), and the magnetic spring unit (5) is located in the magnetic field of the magnetic steel unit (31) to generate vibration restoring force used for providing for the vibration unit (3). Compared with the related art, the linear vibration motor (100) is simple in assembly, good in vibration performance, and high in reliability.

JPS60188629	[Title of the device] Sun visor device
JP2015220938	ROTARY DRIVE MECHANISM AND IMAGING APPARATUS

MA JIE (CN)
WANG YAO (CN)
TANG YUN (CN)

PCT/CN2019/130020

July 08, 2021

December 30, 2019

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AAC ACOUSTIC TECH SHENZHEN CO LTD (CN)
AAC TECH NANJING CO LTD (CN)

H02K33/18

CN104617736A	2015-05-13
CN206432878U	2017-08-22
CN205986582U	2017-02-22
CN106208607A	2016-12-07
US10468928B2	2019-11-05

GUANGDONG GUANGHE LAW FIRM (CN)

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